<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        const arr = [{ label: '男', value: 1 }, { label: '女', value: 0 }]
        function f(arr) {
            // 写代码，得到
            const obj = {}
            arr.forEach((item,index) => {
                obj[item.value] = item.label
            })
            return obj
        }
        const obj = f(arr)
        console.log(obj)
        // obj = {'0': '女'，'1': '男' }
    </script>
</body>
</html>